7 1/7-4 5/8=50/7-37/8= ( 400-259)/56=141/56= 2 29/56
17 1/7+36 6/7=53+1=54
6 1/9+4 5/6=55/9+29/6= (110+87)/18=197/18=10 17/18
5 6/7+2 4/5+8/21=41/7+14/5+8/21=(615+294+40)/105=949/105=9 4/105
10 5/12+5 11/16-8 3/8=125/12+91/16-67/8= (500+273-402)/48=371/48=7 35/48
7 1/7-4 5/8=50/7-37/8= ( 400-259)/56=141/56= 2 29/56
17 1/7+36 6/7=53+1=54
6 1/9+4 5/6=55/9+29/6= (110+87)/18=197/18=10 17/18
5 6/7+2 4/5+8/21=41/7+14/5+8/21=(615+294+40)/105=949/105=9 4/105
10 5/12+5 11/16-8 3/8=125/12+91/16-67/8= (500+273-402)/48=371/48=7 35/48